Paper Title
18W Non-Isolated Closed-Loop Flyback Converter

This paper brings to the fore an implementation of a closed-loop flyback converter that steps down one DC level to another efficiently. An open-loop implementation is often used in applications where regulation is not an absolute necessity. The complexity of the circuit is also less in an open-loop implementation. However, many applications demand a constant output even when the load conditions and the input voltage are not constant. In these situations, adopting a closed- loop configuration becomes advantageous. For the implementation of closed loop system, a PWM IC is used. This paper presents design of open-loop and closed-loop systems for a flyback converter followed by hardware results of various tests performed. Keywords—Flyback, Snubber, Open-loop, Bode, pulse width modulation(PWM), Regulation